[Building Sakai] Samigo error: Error testing property 'formatByPart' in bean of type null

[George Pipkin]

Hi Lydia:

The latest report involves a student pl9rm who was taking the Two-D, 
Steady-State Conduction - F 2011 quiz in Bob Ribando's MAE 
6110&3140-F2011 class on October 11, 2011 6:23 PM. According to the 
student's report, the
bug takes place when the quiz is submitted. It appears that the 
submission took place successfully, and
there is a score for this student in this quiz, and it looks to me like 
all the answers he supplied are accounted for (except perhaps the honor 
pledge - not sure how that is handled).

The bug itself relates to a null value presented by the system for one 
of the settings that pertains to whether or not the assessment is to be 
delivered in parts, or all in one page. In the case of the quiz above, 
it is set to be delivered all in one page. In the database, this value 
is stored in the table SAM_PUBLISHEDACCESSCONTROL_T in the column 
assessmentFormat - an integer {1,2,3}. There are no cases where this
column is null in the database.

Looking at this particular assessment, the instructor configured it "The 
complete Assessment is displayed on one Web page".

I was able to take this particular quiz under another student's id on 
our test system without error, so whatever is going on
is not happening all the time.


                                                 - George





On 10/7/11 4:07 PM, Lydia Li wrote:
> George,
>     Do  you have the steps to reproduce this error? or do you only see 
> this in tomcat log?  formatByPart is a property of the  
> SettingsDeliveryBean JSF bean  
> (sam/samigo-app/src/java/org/sakaiproject/tool/assessment/ui/bean/delivery/SettingsDeliveryBean.java) 
>   and it should  not be null.  It  would be helpful if you could find 
> the steps to reproduce this error.
>
>
> thanks,
> Lydia
>
>
>
> On 10/7/11 11:35 AM, George Pipkin wrote:
>> Hi Everybody -
>>
>>    We have been seeing an increasing tempo of exceptions thrown by 
>> samigo (24 over the
>> pas week).  The exceptions take place when somebody is taking an 
>> assessment, but they
>> appear to happen entirely up in JSF.  Here's a piece of a typical log 
>> entry:
>>
>> 2011-10-03 11:32:13,563 ERROR TP-Processor27 
>> org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/samigo-app].[sakai.samigo] 
>> - Servlet.service() for
>> servlet sakai.samigo threw exception
>> javax.faces.el.PropertyNotFoundException: Error testing property 
>> 'formatByPart' in bean of type null
>>         at 
>> com.sun.faces.el.PropertyResolverImpl.getType(PropertyResolverImpl.java:342)
>>         at 
>> com.sun.faces.el.impl.ArraySuffix.getType(ArraySuffix.java:240)
>>         at 
>> com.sun.faces.el.impl.ComplexValue.getType(ComplexValue.java:208)
>>         at 
>> com.sun.faces.el.ValueBindingImpl.getType(ValueBindingImpl.java:345)
>>         at 
>> com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:111)
>>         at 
>> javax.faces.component.UIInput.getConvertedValue(UIInput.java:713)
>>
>>
>> I'm not sure what formatByPart is.  Anybody else ever see this ?
>>
>>                                                     - George Pipkin
>>                                                        U.Va.
>